Home / 70,109.36-105,205.56-28,009.26

Finding the Fourth Proportional to 70,109.36, 105,205.56 and 28,009.26

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Solution

The fourth proportional to 70,109.36, 105,205.56 and 28,009.26 is: 42,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.36 : 105,205.56 = 28,009.26 : x
  2. Step 2: Convert to fraction form
    70,109.36/105,205.56 = 28,009.26/x
  3. Step 3: Cross multiply
    70,109.36x = 105,205.56 × 28,009.26
  4. Step 4: Simplify right side
    70,109.36x = 2,946,729,883.49
  5. Step 5: Solve for x
    x = 2,946,729,883.49/70,109.36
  6. Step 6: Final answer
    x = 42,030.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.